Home / 2,179.20-3,266.74-1,553.88

Finding the Fourth Proportional to 2,179.20, 3,266.74 and 1,553.88

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Solution

The fourth proportional to 2,179.20, 3,266.74 and 1,553.88 is: 2,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.20 : 3,266.74 = 1,553.88 : x
  2. Step 2: Convert to fraction form
    2,179.20/3,266.74 = 1,553.88/x
  3. Step 3: Cross multiply
    2,179.20x = 3,266.74 × 1,553.88
  4. Step 4: Simplify right side
    2,179.20x = 5,076,121.95
  5. Step 5: Solve for x
    x = 5,076,121.95/2,179.20
  6. Step 6: Final answer
    x = 2,329.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.